4.2. Migrating Clients

Migrating Apache ActiveMQ clients

In general, it is recommended that you update your Apache ActiveMQ clients at the same time that you update the brokers, in order to guarantee compatibility between clients and brokers.

It is possible, in some cases, that older client versions might be interoperable with later broker versions. The Openwire protocol supports version negotiation, such that an old client can negotiate the lowest common version with its peer and use that version. But JBoss A-MQ does not have a comprehensive test suite for testing compatibility between all of the different versions of Apache ActiveMQ. Hence, to be sure of compatibility, it is recommended that you upgrade your clients along with your brokers to use the same version.

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